Self-loading mixer.



G. S. ATKINSON.

SELF LOADING MIXER.

APPLICATION FILED 1UNE23, I915.

Patented Mar. 27, 1917.

2 SHEETS-SHEET I.

WITNkSSES.

' A7TOR/VEY8 1m: manms Pmns mv Pnnmu'rua. msumc mul n c.

G. S. ATKINSON.

SELF LOADING MIXER.

APPLICATION FILED JUNE 23, I915.

l 2%058112 Patented Mar. 27, 1917.

2 SHEETS-SHEET 2- v dAz /fuzswz warm-255255 v I y E W/ ATTORNEYS s r uric.

GERALD S. ATKINSON, 0F LOS ANGELES, CALIFORNIA.

SELF-LOADING MIXER.

Specification of Letters Patent.

Patented Mar. 27, 1917.

Application filed June 23, 1915. Serial No. 35,859.

To all whom it may concern:

Be it known that 'l, GERALD S. ATKINSON, a citizen of the United States, and a resident of Los Angeles, California, have invented a new and Improved Self-Loading Mixer, of which the following is a full, clear, and exact description.

This invention relates to machines for mixing building materials and has partlcular reference to machines for automatic gathering and mixing of materials for bu lding streets, roadways, concrete for bulldings, etc.

Among the objects of the invention is to devise and design a machine of the character indicated which is self-loading especially with respect to all the heavier parts of the mixer, means being provided to cause the machine to be self-propelled toward a bulk of sand, gravel or the like, for gathering or scooping up the same and mixing with other component parts such as concrete, water, etc.

With the foregoing and other. objects in view, the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed herein, still for the ing a part of the vehicle framework mounted upon wheels 12.

At the end of the frame is a vertical yoke 57 pivoted on vertically alined trunnions 58 so as to swing around the vertical axis but lying normallyin a vertical plane perpendicular to the line of movement of the machine. A receiving hopper 59 is positioned within the yoke 57 and is adapted to deliver downwardly into or toward an elevator boot 60 between the wheels. At 61' I provide a pair of channel beams with their open sides inward toward each other forming tracks for wheels 62 and 63 of a reciprocatory scoop S movable forwardly and 'rcarwardly along the same with the wheels 62 running upon the upper flanges of the beams 61 and the wheels 63 running upon the lower flanges or between the two flanges of said beams. The beams 61 considered together constitute a boom pivoted at 61 upon the sides of the yoke and adapted to be lifted by any suitable flexible power connections as, for instance, by a cable 65 secured at its outer end at 66. to the channel beams and operating over an elevated pulley 67 and extending thence downwardly and rearwardly where it is connected to any suitable power means (not shown).

The scoop E: is of peculiar construction comprising a bottom 68 having a front cutting edge 68, side panels 69 converging upwardly at their rear in panels 69, a top panel 70 and a rear panel '71. Because of the inclination of the several parts, the scoop is provided with a large receiving mouth at its lower front portion and a restricted delivery opening or spout 72 at its upper rear portion. The scoop is well braced, having skeleton frames 73 secured thereto on the sides and supporting a pair of bars 74 and 7 5 to which the wheels 62 and 63 are secured. The front bar 74: serves as a means for connecting the projecting and return cables 76 and 77 respectively. The projecting cable leads around direction pulleys 78 at the front end of the boom and thence along one of the booms over direction pulleys 79 to a power device. The return cable 77- leads rearwardly from the bar 74: beneath a guide pulley 80 over another pulley 81 on the frame.

It being presumed that piles or bulks of rough material, such as gravel, sand, or the like, will be suitably positioned along the line of action, the machine as a wholemay be propelled toward such piles with the boom then located over either pile and sufficiently lowered by means of the cable 65 to bring the bottom thereof upon the ground or adjacent the bottom of the pile. Power is then applied to the cable 76, causing the scoop to glide beneath the pile and become filled when the boom and scoop carried thereon may be hoisted sufficiently to clear the scoop from the pile or from the ground, when the scoop may be operated along the boom toward the receiving hopper 59 either by gravity or by the operation of the cable 77, and when the wheels 63 reach the rear ends of the beams 61, a continued draft upon the cable 7 7 will tilt the scoop upwardly and rearwardly as shown in dotted lines in Fig. 1, causing the con tents thereof to be delivered through the opening 72 into the receiving hopper 59 from whose boot the elevator 90 will convey the material to any desired place, depending upon the character of the material being treated at this time. After the load has been discharged from the scoop as just described, the scoop may be lowered and projected forwardly for another load as described above.

I claim 1. In a machine of the class set forth, the combination with a frame, of an open yoke pivoted on a vertical axis upon said frame, a boom comprising a pair of parallel channel beams connected to the sides of the yoke in the same plane, said channel beams having their flanges extending toward each other, a scoop movable along the boom and having pairs of wheels rolling upon the upper and lower flanges respectively of the beams, and power connections for the scoop for determining thev position thereof with respect to the boom, said scoop having a filling mouth at its lower front portion and a restricted spout at its upper rear portion,

said connections serving to project the scoop along the boom in one direction for filling and to return and tilt it to deliver its load through said spout and yoke.

2. The combination of a frame, a yoke supported in said frame in a vertical plane and pivoted for swinging movement around a vertical axis therein, a boom including a pair of parallel channel beams with their open sides toward each other pivoted at their rear ends to the sides of said yoke, the axis of the boom in the yoke being at right angles to the axis of the yoke, a reciprocatory digging, carrying. and dumping scoop supported upon said boom and having a pair of rear wheels operating within the channels and confined thereby to the plane of the boom and having another pair of wheels rolling upon the upper flanges of the beams, said scoop having a wide receiving mouth at its front and a restricted delivery spout at its rear end, and flexible power connections for the scoop causing the scoop to be projected forwardly for filling and transporting the same rearwardly filled, said connections also serving to tilt the scoop upwardly around said rear wheels to cause the delivery of the material through said spout.

GERALD S. ATKINSON. Witnesses:

JAs. H. HILL, EDITH RAMSEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 0! Patents, Washington, D. C. 

